More usage of known zend_str instead of C string (#11381)

Correctly handle multiple constants in typed declaration

While here also fix AST printing support.

Correctly copy lineno for zval asts (#11203)

The comment was incorrect. Zval ASTs store their lineno in u2, but u2 does not
get copied in ZVAL_COPY. This triggers use-of-uninitialized er

Correctly copy lineno for zval asts (#11203)

The comment was incorrect. Zval ASTs store their lineno in u2, but u2 does not
get copied in ZVAL_COPY. This triggers use-of-uninitialized errors with MSAN.
Unfortunately, I don't have a simple reproducer.

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Unary minus const expression consistency

- of 0.0 should result in -0.0

Closes GH-10978

Fix comp-time and constant evaluation of dynamic class constant fetch

Fixes GH-10486
Fixes oss-fuzz #55436
Fixes oss-fuzz #55472
Closes GH-10487

Fix lineno for all constant expressions

Fixes GH-8821
Closes GH-8855

Revert GH-10300

Cf. <https://github.com/php/php-src/pull/10220#issuecomment-1383739816>.

This reverts commit 68ada76f9a659745f572539b72afa06fa75a866f.
his reverts commit 45384c6

Revert GH-10300

Cf. <https://github.com/php/php-src/pull/10220#issuecomment-1383739816>.

This reverts commit 68ada76f9a659745f572539b72afa06fa75a866f.
his reverts commit 45384c6e201eda9963e2fcc18946a9446230a2d6.
This reverts commit ef7fbfd71025f034b0bfcb413efd181ce798fc1b.
This reverts commit 9b9ea0d7c696f2990a159b2a2dafbc04547dc10f.
This reverts commit f15747c26be4a2330dc0cf3ea442f53f30f84cac.
This reverts commit e883ba93c40827fafd7868517eb48e04569f76ab.
This reverts commit 7e87551c3775d26e20b06a4032a00053db6452cc.
This reverts commit 921274d2b8966641a00c0a767ae40ba7187bdffc.
This reverts commit fc1f528e5e3ee45ab17ae8dcfad6a6422ff2002d.
This reverts commit 0961715cdafb5d39124667ff94f3b56453ce71f1.
This reverts commit a93f264526e1cdade71d887800c1c448c411bfdc.
This reverts commit 72dd94e1c6d29203b8f6473317f626e6d6d6fbdc.
This reverts commit 29b2dc89645e741f91cc920964432dccd2aaef14.
This reverts commit 05c7653bba7571852f5ce6fc0d220a1a829bc4c0.
This reverts commit 5190e5c260ee05e3f3c3d1168263a1a6637441d0.
This reverts commit 6b55bf228cb2da8705737d414f394950a92d8aae.
This reverts commit 184b4a12d3215d105720d005b31e365249e2eb21.
This reverts commit 4c31b7888a561e920fd3889ba8d99368f3c2d9e6.
This reverts commit d44e9680f080b4918cfed268b96f90ea35975617.
This reverts commit 4069a5c43f419d76e1254c8e49b4cad9968a408f.

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Zend/zend_ast: include cleanup

Remove _zend_ast_decl->lex_pos (#10046)

This struct member was only written to, but never read.

Fix GH-9769: Misleading error message for unpacking of objects

Only arrays can be unpacked in constant expressions.

Closes GH-9776.

Fix incorrect short-circuiting in constant expressions (#10030)

Fixes GH-10014

Fix caching of default params with side-effects

Fixes GH-9965
Closes GH-9935

Remove unnecessary ast eval bailout

We can just reset the filename_override to NULL in php_request_shutdown.

Closes GH-9805

Fix class name FQN when AST dumping new and class const

Fixes GH-9447
Closes GH-9462

Fix arrow function with never return type

Fixes GH-7900
Closes GH-9103

GH-8344 Fetch properties of enums in const expressions

Allow arbitrary const expressions in backed enums

Closes GH-7821
Closes GH-8190
Closes GH-8418

Add support for readonly classes (#7305)

RFC: https://wiki.php.net/rfc/readonly_classes

Merge branch 'PHP-8.1'

* PHP-8.1:
Fix preloading of constants containing enums

Fix preloading of constants containing enums

Fixes GH-8133

Reset EG(filename_override) after fatal error

Fixes oss-fuzz #45492

Adjust filename/lineno for constant expressions

Closes GH-7771
Closes GH-8124

Merge concatenated literal strings while compiling. (#7948)


The output of token_get_all is unaffected, so projects such as the userland
nikic/php-parser are unaffected.

Ext

Merge concatenated literal strings while compiling. (#7948)


The output of token_get_all is unaffected, so projects such as the userland
nikic/php-parser are unaffected.

Extensions such as nikic/php-ast which expose the internal php ast would see
literals be flattened, though.

This makes php significantly faster at parsing code such as
`$x = eval('return ' . var_export(str_repeat("\0", 100), true) . ';');`
and avoids the stack overflow from recursing 100000 times in
zend_eval_const_expr to process `'' . "\0" . '' . "\0" . ...`

Closes GH-7946

* Don't create binary op if unnecessary
* Update Zend/zend_ast.c

Co-authored-by: Nikita Popov <nikita.ppv@googlemail.com>

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Fix bug #81611

Add zend_fetch_class_with_scope() which accepts a scope to use for
self/parent, and use that during constant expression evaluation.

Closes GH-7649.

Export AST for default value strings in reflection

When dumping default values in ReflectionXXX::__toString(), for
expression initializers print the AST export instead of trying to
e

Export AST for default value strings in reflection

When dumping default values in ReflectionXXX::__toString(), for
expression initializers print the AST export instead of trying to
evaluate the expression. With the introduction of "new in
initializers" the result of the evaluation will commonly not be
printable at all, and "__toString" will throw an exception, which
is not particularly useful. Using the AST export also provides more
information on how the parameter was originally declared, e.g. it
preserves the fact that a certain constant was used.

Closes GH-7540.

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